Power-gas producing and consuming apparatus.



No. 812,194. PATENTED FEB. 13, 1906.

0. ELLIS.

POWER GAS PRODUCING AND OONSUMING APPARATUS.

APPLICATION FILED MAY 11, 1905.

WITNESSES: INVENTOR c2 2% W qkxafig.

v gen.

UNITE-D I sra'rns OARLETON ELLIS, OF NEW YORK,

PATENT caries.

N. Y, ASSIGNOR TO COMBUSTION UTILITIES COMPANY, OF NEW YORK, 'N. 1 A CORPORATION OF NEW YORK.

. To all whom, it may concern.-

"Be it known that I, CARLETON ELLIs, a citizen of the United States, and a resident of- New York city, in the county of- New York and State of New York, have invented certain new and useful Improvements in Poweration;

' Thisinvention relatesto power-gas producing and consuming apparatus in which a gas-producer is made the source of the combustible gas and an internal-explosion engine the means for gas consumption and power production. 7

It relates particularly to means for the con: trol of the temperature of the gas-producer Withoutthe .use of excessive amounts of steam or water-vapor, thereby avoiding the production of combustible gas containing a large amount of the obj ectionableelementfhydro- My invention involves the use of the products'of explosion from the gas-engine or of products of combustionafrom other suitable sources. It involves thefuse of these products of combustion in the producer in such a way that control of the temperature is secured and formation of objectionable clinkeror slag is preventedl I have found in the operation of gas-producers by ineans of a draft-current containing products of combustion or carbon dioxid that an important factor'in the temperature control of the gas-producer isthe temperature of the incoming draftcurrent. In a draft-current of the nature "above mentioned the two reacting constitdents-oxygen and carbon dioxid-thermochemically considered, are antithetic in that the reaction of the one is exothermic, while that of the otheris endothermic. I have found that the velocity of reaction of each of these constituents is a variable depending upon the temperature, and' order to prevent the formation of clinker in the gas-producerto cool the products-of combustion.- By bringing about a substantial re-' Specification of Letters Patent.

Application filed May 11, 190?. Serial No. 259,926.

- in the producer.

Eatented Feb. 13, 1906.

ductionin' temperature "the reaction velocities approximate each other and the producer temperature is placed under control.

The introduction of carbon dioxid into a gas-producer has acertain effect on the fuel aside from its endothermic reaction, as will be apparent from a consideration of certain of the laws of physical chemistry. Producergas always contains carbon dioxid Complete reduction to carbon monoxid is impossible. This is due to the fact that a balanced reaction or equilibrium exists, and in accordance The introduction into the gas-producer from an external source of sufiicient carbon dioxid to artificially-create the aforesaid partial pressure results in largely preventing the formation from the fixed carbonof the coal of any appreciable amount of carbon dioxid. The

final and net result, therefore, is the complete gasification of the coal or complete conversion of the fixed carbon of the fuel to carbon monoxid. The .carbon dioxid present in the producer-gas ordinarily used in the operation'of gas-engines represents as gaseous cash from ten to twenty per cent. of the total calorific value of the gas, The necessity for cooling the gas prion to itsi-ntroduction into the engine makes it impossible to utilize the great sensible heat of the produceras, due to-the complete combustion to caron dioxid of so lar e a percentage of the fuel v he creation of aforesaid partial pressure, therefore, represents a very largeeconomyin fuel and gives rise to a pro ducer-gas so rich in combustible matter that the engine-cylinders may be of smaller dimensions than those used in present-day prac tice. 1

The object of my invention is to provide a means for the use of products of combustion in a gas-producer adapted to gasification of fuel for gas-engine purposes and to make use of the gas after suitable purification as a source of power;

My invention comprises a gas-producer or battery thereof supplying a gas-engine or battery thereof with combustible gas, a conduit of air an 7 is a cooler and vaporizer.

' matters and soot. '10 leads to a pressure-equa zer'll, from 8 is a as-engine the products of combustion of W h pass through the flue 5 and the cooler 7 to the gas-producer. 9 is a scrubber or purifier throughwh ch the combustible as from the flue 6 after passing through the cooler 7 is subjected to purification, removing the volatile or tarry From the urifiers a flue which connection to the engine is established by the passage 12.

-ed to'this 13 is an air-inlet for admission of air to the cooler and vaporizer 7. I

14 is an air-inlet by which fresh air may be entered into the flue 5 between the cooler and producer through the leg 16. Connectair-inlet pipe is the leg 15, which establishes connection with the vaporizer and permits of water-vapor or'of air and water-va or being drawn or passed into the flue 5. T e valves or dampers 17, 18, 19, 20,

and 21 regulate the flow of gases and-serve fuel mass is where needed to proportion the relative amounts of oxygen and carbon dioxid or products of combustion and water vapor which enter the producer. I

The operation of my apparatus is as follows: In the gas-producer 1 a bed of fuel of suitable depth for gasification is brought to the proper state of ignition, and through this assed a draft-current composed of air admitted either through inlet 14 or through inlet 13, in which case it will carry water-vapor containing also products of combustion. The gas reduced departs through the passagefi, is cooled in the vaporizer 7 purified in the scrubber 9, and is delivered at the engine, where by admixture with air and sub-' sequent explosion its heat energyis converted into mechanical motion. That portion of the products of combustion required in the gas producer is carried back through the flue 5 to the va orizer 7, where by contact with walls chille by external contact withwater or oth-.

-er wise the gases are cooled below that critical point at which clinkering'in the gasroducer would be incurred. gling with the air and water-vapor they enter the producer, where by the endothermic re action of the carbon dioxid and steam the temperature of the producer ismaintained at an eflicient gasifying-point. 'By regulating the amount of water-vapor which is so adcooled From thence a ter minmitted the formation of large amounts of by:

drog'en is prevented, thereby obviating all troubles from premature ignition-of the en-' me. In ordinary ractice in this art increase in temperature v the gasroducer causes an increase in the amount 0 steam or water-vapor su plied thereto. It consequently ha pens t at large amonts of hydrogen'may e produced at inopportune times, causing premature ignition and resultin 1n injury or wreckage of the ap aratus. y the present invention such trou les are eliminated, inasmuch as temperature'control is attained by amixture of water-vapor and roducts of combustion. Reduction -of-the ormer to a very large degree is thereby rendered possible. At the same time a combustible gas is generated which, owing among other reasons to the satisiaction of the partial pressure of the carbon .dioxid, is richin combustiblematter.

I do not limit In self to the use of products of combustion sole y from the gas-engine. In certain cases it may be. preferable to derive the products of combust1on from furnaces or steam-generators or from heating and calcining kilns ofvarious descriptions. I do not restrict myself to any precise form of construction, and I have therefore depicted my invention diagrammatically.

What I claim is 1. In a power-gas producing and consuming apparatus, the, combination of a gas-producer, a gas-engine, a cooled gas delivery pipe connecting producer and engine; a

of com ustion from the engine and delivering the same into the producer, and means opening directly into the atmos here for admitting air into the cooled pro nets of combustion. I

2. In a power-gas producing and consuming apparatus, the combination of a gas-producer, a gas-engine, a cooling vessel adapted to contain water, a as-dehvery pipe conmeeting1 producer and engine and passing throug said vessel, a pipe conn'ectionab stractmg roducts of combustion from the engine an delivering the same into the producer, also passing through said vessel, means opening directly Into the atmos here for admitting air into the products 0 combustion cooled thereby and means also admitting'vapors fromsaid vessel into the products of i combustion.

3. In a power-gas producing and consummg apparatus, the combination of a gas-producer, a gas-engine, a gasdelivery pipe 0on necting producer and engine, a coolmg'vessel adapted-to contain water, a pipe connection abstracting (products of combustion from the engine an elivering the same into the producer, and passing through said vessel, means opening into the atmosphere for admitting pipe connection abstracting products air into said products after passing the vessel, and means also admittingvapors from said vessel into said products of combustion.

'ing apparatus, the combination of a gas-pro 4. In a power-gas producingand consuming apparatus, the combination of a gas-producer, a gas-engine, a gas-delivery pipe connecting producer and engine, means for returning products of combustion from the engine to the producer, meansfor cooling said products of combustion, and means for mingling ,the cooled products of combustion With cool air andwithwater-vapor. I

5. In a power-gas producing and consuming apparatus, the combination of a gas-pro ducer, a gas-engine, a gas-delivery pipe 0on necting producerand engin, a purifying device in said delivery-pipe, meansfor returnv jing products of combustion from the engine to the roducer means for cooling said prod- 2o ucts o combustion, means for the admission of air to the cooled products and means for the admission of water-vapor. 6. In a power-gas producing and consumducer, a gas-engine, a water-cooled gas-delivery pipe connebtingproducer and engine, a

Water cooled pipe connection abstracting products of combustion from the engine and delivering the same into the producer and.

means for introducing the water vaporized in said cooling into the products of combustion after cooling. I

Signed by me, CARLETON ELLIS, in the county of New York and State of New York. this 10th day of May, A. D. 1905.

.- CARLETON ELLIS.

vW'itnesses:

JAs. D. GRANT, 3 A. M. SEN oR; 

